DREAMWEB: added allocateSegment, added some stubs

2 files changed, 15 insertions, 4 deletions

diff --git a/engines/dreamweb/dreamweb.cpp b/engines/dreamweb/dreamweb.cpp
index 25e6118457..8c6b3ce3fb 100644
--- a/engines/dreamweb/dreamweb.cpp
+++ b/engines/dreamweb/dreamweb.cpp
@@ -153,11 +153,9 @@ void keyboardread(Context &context) {
 }
 
 void resetkeyboard(Context &context) {
-	::error("resetkeyboard");
 }
 
 void setkeyboardint(Context &context) {
-	::error("setkeyboardint");
 }
 
 void readfromfile(Context &context) {
@@ -201,7 +199,12 @@ void gettime(Context &context) {
 }
 
 void allocatemem(Context &context) {
-	::error("allocatemem");
+	uint size = (context.bx + 2) * 16;
+	debug(1, "allocate mem, %u bytes", size);
+	context.flags._c = false;
+	SegmentRef seg = context.allocateSegment(size);
+	context.ax = (uint16)seg;
+	debug(1, "\tsegment address -> %04x", (uint16)context.ax);
 }
 
 void deallocatemem(Context &context) {
@@ -213,7 +216,7 @@ void removeemm(Context &context) {
 }
 
 void setupemm(Context &context) {
-	::error("setupemm");
+	//fixme: double check this, but it seems that emm pages used only for sound
 }
 
 void pitinterupt(Context &context) {
diff --git a/engines/dreamweb/runtime.h b/engines/dreamweb/runtime.h
index 6b5f650fc6..bcc7c383a7 100644
--- a/engines/dreamweb/runtime.h
+++ b/engines/dreamweb/runtime.h
@@ -209,6 +209,14 @@ public:
 		return SegmentRef(this, value, &i->_value);
 	}
 	
+	SegmentRef allocateSegment(uint size) {
+		unsigned id = kDefaultDataSegment + _segments.size();
+		assert(!_segments.contains(id));
+		Segment &seg = _segments[id];
+		seg.data.resize(size);
+		return SegmentRef(this, id, &seg);
+	}
+	
 	inline void _cmp(uint8 a, uint8 b) {
 		uint8 x = a;
 		_sub(x, b);